Washer,shower & sink tie in small space

Hi
Hope you can help but first , I'm doing this from my iPhone ,how do I post pics I take with same phone?
It would ba a whole lot easier to explain as this thing is a mess
Need to get on this ASAP , doing this for mom & trying to save her $ & do it the best way
Thank you
T

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hey guys hope this works
so tore out old roman tub arm was buried in footing 1 1/2 too small so i want to change to 2...... whoa big mistake
any ways as u can see i have opened a can o worms
i will be cutting out footing & repair with sleeved pipe all 2" if posible and would like to get that water out of footing
also need center on new shower drain and i got ..... something in the way
also seeing how its all getting chopped i want to put washer setup in stud bay as well with a nice box
one catch if you see how it is set now im putting in a resessed med cab right above or at the y in vent where it meets and opening up the 3 stud bay by 1 1/2' yup 1 stud running on side
this is my moms house so im down for the project
im very slow so shes willing to pay me
im a 4th gen tile contractor who has moved into full bath remodel so im not a total plumb rook but just in thr bath n tile relatedplumb

The washer ties in under sink & uses shower vent to share, so what do you guys think ? i have some drawings of how i plan to do but any advice would be nice , if need be i don mind adding 2x4 to make wall bit thicker to run pipe
& no it has not had problem & this is guest bath
she wants low curb so i gotta get that trap right into those lines in ground

so ill start w the cast iron waste under slab,
where would you cut? the piece that is horzontal & ties into y looks almost scary to cut or tie into its so rusted
was thinking keeping it & puting a long sweep t to branch to new shower, vent comes up same as is
on right want to no hub to the vert pipe above 22.5 run up put long sweep or sani t straight to trap for washer stand pipe & 45 it back to center above where i want to tie in all the vent line
above the arm for washer would be sink stub out and reverse side a clean out
then a y above to tie into shower vent, run vent little on 45 to left out of medicine cab way then up , back 45 to vent above
copper in that bay will be tight but fine
my only prob is getting it out of ground
& how can i identify some of the others?
like the 1" possible green copper on the right side of drain stack?
or the other cast... or str8 iron that runs next toshower drain and left of that some 1 or rotten odd size guy
then what apper to be 3/4 line & 1/2" through the area for new shower drain

In the "square" with the washer box, just about EVERYTHING in the bottom picture is "illegal". The upper picture is also illegal because vent is tied in below the fixture's spill line. Good luck getting those two pipes on the right side to cross each other and still get the pipes and the washer box in the wall

While this forum is intended to help us DIY folks with plumbing problems, there comes a time for most of us when we have to realize we are in over our heads and that there are limits on how much online help we can get for major jobs. It often takes someone one site to evaluate the task. It really looks to me like you have reached the point where the best advice is to hire a plumber. On the positive side, it looks like you have done most, if not all, of the demo that needs to be done so that will save some $$. I hate to pay a journeyman's wages for doing grunt labor. Point is, you could struggle with trying to DIY then find that you made an error (or six) and the job won't pass inspection so you have to tear out and redo. There goes the $$ you are trying to save mom not to mention the time spent with a torn up house.

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really? so is this a how to instal a wax ring or install a ptrap fourm?
im not rtying to be full of myself , maybe the whole mom thing threw u off i got my contractors licence @ 22-23 i forget im 32 now
ive ran 75k + jobs , had 8 full time employes ,ive been in the trades as long as i can remember my name is tileman4 cause im 4th generation my dad was also a pool tech before doing elect and plumb on them & taught me to run copper @ 16
this is not a huge deal here im just trying to get it absolutly to code so if i later on want to hack or take a short cut ill still be running at better than average
ive talked to 5 foundation experts & read for hours on footings on top of the knowlage i already have
ive talked to a few gc i know too they all said i got this
but seems every plumber wants to make a game of it like its some secret club,
i get calls all the time bout things from homeowners & have no prob giving them hints or tricks , or my bros in the trade yeah im not to fond of jose who just got here or the long time no licence guys , in fact im working on my gc right now but we all start somewhere & its asking questions
its not hard to see here based onpics & so on if im doing it the best way im not doubting my self in one way if i can do it
the house was built in the 40s so alot is wrong i know quite a few plumbers would have said u have to use the 1 1/2 old roman tub line & its gonna be off set like hell & its gonna sit higher so forget the low pro curb
but hey thanks your doubt fuels me & drives me
fyi heres a few of my most recent jobs

ok so after taking a break to do another job im back and offer up my sincere apologies for any arrogant remarks, i came at you guys looking for a quick answer to a trade that takes years to understand like my own well after many hours ( 20+ !!!!!) of researching codes i came up with this.....
now the shower to be centered needs a deep drop before trap for wier to clear pipes so getting a wye vertical branch off that main 2" was a no go i was gonna use combi but heard the san tee was proper to allow vent to work
not sure if i can split horizonal branch like this but moving it over far enough left is no easy task
all fixture will have own 2" vent to tie above didnt want to start that considering i need to pour footing & frame in with out hacking up studs
also i decided to doulbe up wall to 2x8 so give room for all be in wall
i humbly ask for any critic as i have almost gave up a few times
thank you